Lock for cycles



Pate nted July 20, 1090. c. SANGSTER.

LOOK FOR CYCLES.

' (Application filed Dec. 20, 1897.) (N0 Model.)

Fzg. s. 022

WITNESSES INVENTQR @W ms nowms PETERS no. PHoToLrmo. wasuma'mu. n c.

CHARLES SANGSTER, OF BOURNBROOK, ENGLAND, ASSIGNOR TO FRANK A. WILMOT, OF BRIDGEPQRT, CONNECTICUT.

LOOK FOR CYCLES.

SPECIFICATION forming part of Letters Patent No. 608,080, dated July 26, 1898.

Application filed December 20, 1897. Serial No. 662,651. (No model.) Patented in England January 1 1893, No. 789, and

November 2, 1894, No. 21,076.

To all whom it may concern.-

Be it known that 1, CHARLES SANGSTER, director, a subject of the Queen of Great Britain, residing at Cycle Components Manufacturing Companys Works, Bournbrook, near the city of Birmingham, England, have invented certain new and useful Improvements in Looks for Cycles, of Whichthe following is a specification, and for which two several Letters Patent of Great Britain have been granted, dated, respectively, the 13th day of January, 1893, No. 789, and the 2d day of November, 1894:, No. 21,076.

This invention relates to an improved looking attachment for cycles, and has for its object a device which admits of being used as a simple bolt or fastening or as a secret combination-lock for preventing the unauthorized use of the machine.

Figure 1 of the accompanying drawings represents a side elevation of a part ofthe steering-head of a safety-bicycle, in which the steering-pillar admits of being fastened or locked to the sleeve of the ball-head by a lock constructed according to my invention. Fig. 2 represents, upon an enlarged scale, a vertical sect-ion of the said lock, showing the bolt of the same withdrawn. Fig. 3 is a like section as Fig. 2, but showing the bolt in its intermediate position-that is, the bolt is in action as a fastening, but is not locked by the cylinders. Fig. 4 is another section of the look when the bolt is fully shot and locked by disarranging the combination of the cylinders. Fig. 5 is a vertical section of Fig. 2 upon the dotted line 00, showing the clearances in the cylinders through which the bits on the bolt pass in line with one another. Fig. 6 is an elevation of the bolt separately, while Fig. 7 represents a section, and Fig. 8 a top side plan, of one of the cylinders or washers separately.

The same letters of reference indicate corresponding parts in the several figures of the drawings.

a is the outer sleeve of the steering-head, having a junction-socket aat its upper end, and his the stem of the handle-bars, secured to the stecring pillar by the head-clip b. Upon the said socket a are formed two lugs a and upon the clip Z2 is formed a third and corresponding lug b and these several lugs a b are bored at a b to receive a bolt or key a, which is mounted so as to be capable of vertical movement within the holes a of the lugs a in such a manner that in one position the upper end thereof engages the-boltsocket b in the lug b of the head-clip, and thereby locks the I steering-pillar rigidly to the frame. Upon this bolt, which is formed on one side with several bits or projections c, disposed in a line with one another,are mounted a corresponding numberof apertured cylinders or washers d, each of which is formed with a keyway or slot d, corresponding with the bits or projections o of the bolt and is recessed at the ends into chambers d which receive the saidprojections and permit the cylinders or washers to be moved around both when the bolt is shot or when withdrawn. The washers are milled on their peripheries to facilitate their rotation, and they are also correspondingly marked with circles of figures or letters, so that when the bolt is raised so as to engage its upper end with the aperture b in the lug b of the clip I) the said cylinders may be turned around until their slots or keyways d are out of' alinement with the bits 0 of the bolt, which cannot now be withdrawn. The steering-lock is thereby securely locked against rotation.

A fiat spring d surrounding the bolt, is interposed between the top of the uppermost washer and the under side of the lug to pre vent the parts rattling.

The figures or letters upon the cylinders cl are arranged after the manner of a permutation combination-lock, so that when a prearranged series of numbers or letters are brought into vertical line the keyways also are all in alinement, thus admitting of the bolt being shot or withdrawn and the steering-pillar be in g locked or unlocked, and after looking the steering-pillar the washers or cylinders are turned into various irregular positions, so that a person ignorant of the prearranged word or sign would find it difficult or impossible to form the required combination of figures or letters to unlock the device.

The recesses or chambersd of the cylinbination of the cylinders.

to the bolt) take and ride therein, so that thesteering of the machine is-thus fastened, but admits of being readily freed without having to first go to the trouble of making the com- If, however, it is desired to bring the permutation locking into effect, the cylinders d are set to give the prearranged combination, when 'the bolt can be forced fully home into the position represented in Fig. 4, and is prevented from rotating by the stud 0 taking into the pocket a, and by now disarranging the previous setting of the cylinders the bolt is permanently locked in place until it is desired to unlock it, which can only be effected by again setting the cylinders to the prearranged combination, when the gaps or keyways become lineable and form a passage along which the bits of the bolt may pass when automatically withdrawn by the spring 6.

Although I have hereinbefore shown and described the locking bolt or key 0 as being carried by the ball-head sleeve and the aperture b to receive it as being formed in the lug b of the handle-bar stem-clip, yet I would have it understood that this arrangement of parts may, if desired, be reversed-that is, the lugs a may be formed upon the handlebar stem-clip and carry the bolt, while the lug I) might be carried on the fixed ball-head sleeve.

Having fully described my invention, what the bolt, and a recess provided in one of said bearings with which one of the projections of the bolt is adapted to engage and in which it may be turned to lock the parts together without manipulation of the cylinders, substantially as described.

2. In locking mechanism for cycles, the combination of bearings carried by one of the parts to be locked, one of said bearings provided with a recess and a pocket, a bolt mounted and longitudinally movable in said bearings and provided with a series of projections, a socket carried by the other part to be looked, a series of cylinders mounted upon said bolt each of which is provided with a slotted diaphragm having chambers on each side of said diaphragm, whereby one of the projections carried by the bolt may engage the recess in said bearing and be turned therein to fastenv the parts together without manipulating the cylinders, and whereby said projection on the bolt may enter the pocket in said bearin g and be confined from rotation, when the parts are to be locked by manipulation of said cylinders, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. 7

CHARLES SANGSTER. Witnesses:

ARTHUR HERsoHMANN, WILLIAM H. LONG. 

